評論
打印
Here's your milk
這是你的牛奶
Wait a minute, Barry
等等 Barry
That was my 15-dollar Cabernet
我15美元的解百納
and it just turned into a glass of milk
就這樣變成一杯牛奶了
So Dr. Dolhun wants milk for his cookies
Dolhun博士想用牛奶搭配餅干
but all he has is wine
但他只有葡萄酒
So to go from wine to milk
為了從葡萄酒得到牛奶
Barry pours the wine into another glass
Barry將葡萄酒倒入另一個玻璃杯
This glass contains barium chloride
這個杯子里裝有氯化鋇
and barium chloride dissolves in water forming barium 2+ and 2Cl-
氯化鋇會溶解于水，形成Ba2+和2Cl-
Now barium 2+ reacts with the carbonate ions in the original solution
Ba2+會同原溶液中的碳酸根離子反應
to produce barium carbonate
生成碳酸鋇
which is a solid white precipitate
這是一種白色固體沉淀
And of course the solid white precipitate makes it look like milk
正是這種白色固體沉淀讓溶液看起來像牛奶
but is Dr. Dolhun satisfied with milk?
但Dolhun博士滿足于牛奶嗎
Let's find out
我們看看
That was my 15-dollar Cabernet
我15美元的解百納
and it just turned into a glass of milk
就這樣變成一杯牛奶了
Oh, sorry about that, I thought you would want milk
哦，抱歉，我以為你想要牛奶
Barry, it's a bad deal Barry
這太不劃算了
Is this milk organic?
這種牛奶是有機的嗎
Uh, no
呃，不是
Barry, come on, you have to do something Barry
這可不行，你得做點什么
OK, how about this? I'll treat you...
好，這個怎么樣
I'll give you some beer. It's on the house
我為你提供一些免費啤酒
Beer?
啤酒嗎
Yeah, as a little substitute low-paid return for messing up your order
對，作為之前過失的一點小小補償
So just take that from me here
嘗嘗這個
That is nice
這很不錯
A beer with a frothy top on it
一杯起泡的啤酒
Very good, Barry
很好 Barry
Enjoy it
慢用
Finally, Barry turns the milk into beer
最終 Barry將牛奶變成了啤酒
To do this, he adds some hydrochloric acid to the mix
為了做到這個，他往混合物中加了一些鹽酸
Now this dissolves the barium carbonate, the solid white precipitate
鹽酸會溶解碳酸鋇這種白色沉淀
And this is the reaction
反應是這樣的
So he adds the hydrochloric acid which
他加入了鹽酸
breaks apart the barium carbonate solid
分解了碳酸鋇沉淀
This yields barium, water and carbon dioxide gases released
這會生成鋇離子，水和二氧化碳作為氣體逸出
And this H plus in the reaction comes from the hydrochloric acid
而這里反應中的H+來自鹽酸
To get the yellow beer color
為了得到黃色啤酒顏色
Barry throws in some dye chromate which is yellow
Barry還加入了黃色染料鉻酸鹽
and he puts a lump of solid carbon dioxide
他還加入了一塊固體二氧化碳
or dry ice in it to make it bubble
也就是干冰，讓溶液起泡
So did Dr. Dolhun and Barry show us today?
回顧一下Dolhun博士和Barry今天所演示的內容
They took a clear solution with certain chemicals in it
他們使用了一種無色透明液體，其中具有特定化學物質
that turns color pink when another chemical is added
加入另一種化學物質后，顏色變為粉紅色
then goes milky when another chemical is added
之后加入另一種化學物質后，變為牛奶狀
then goes clear again when another is added and then
之后加入另一種化學物質后，變得澄清
goes yellow and bubbles when two more chemicals are added
之后再加入兩種化學物質后，溶液變成黃色并起泡
This shows us how chemistry can be used to program a system
這讓我們了解到，化學能夠被用于設計一個系統
to take on different observable properties
來得到不同的觀測性質
It's truly magical
真的很神奇
That's it for me. Hope you enjoyed the magic
就到這里，但愿大家喜歡這種神奇的化學
